1)How many transformers i need for 6 cars pitstop system with lap counter and chronometer and why ?2)If i need more than one, it is for the cars only or also for support the module 25000 (ok through link from main pit box), lapcounter, chrono

I have 2 full sets (GT Pit box & basic) with additional track and running 4 - 6 cars. I was told by SCX that when I add the lap counter and chronomiter I will need to run with 3 power supplies. I have noticed while running 4 cars with one power supply the control box was flashing a red light which I was told by SCX that additional power was needed. I was also told the max amount of track is 125ft, but anything over 60ft with additional items like the lap counter and chronomiter you should use 3 power supplies.